
package Domein;

import java.io.UnsupportedEncodingException;
import java.security.*;


/**
 * 
 * @author Tim
 */
public class MD5 {

    /**
     *
     */
    public MD5() {
        
    }

    private static String convertToHex(byte[] data) {
        StringBuffer buf = new StringBuffer();
        for (int i = 0; i < data.length; i++) {
            int halfbyte = (data[i] >>> 4) & 0x0F;
            int two_halfs = 0;
            do {
                if ((0 <= halfbyte) && (halfbyte <= 9)) {
                    buf.append((char) ('0' + halfbyte));
                } else {
                    buf.append((char) ('a' + (halfbyte - 10)));
                }
                halfbyte = data[i] & 0x0F;
            } while (two_halfs++ < 1);
        }
        return buf.toString();
    }

    /**
     *
     * @param text
     * @return
     */
    public static String genMD5(String text) {
        MessageDigest md;
        try {
            md = MessageDigest.getInstance("MD5");
            byte[] md5hash = new byte[32];
            md.update(text.getBytes("iso-8859-1"), 0, text.length());
            md5hash = md.digest();

            return convertToHex(md5hash);
        } catch (NoSuchAlgorithmException ex) {
            System.err.println("Error: NoSuchAlgorithm");
        } catch (UnsupportedEncodingException ex) {
            System.err.println("Error: UnsupportedEncodingException");
        }

        return "";
    }
}